Automatic temperature sensing electric heater



FIG. 1 is a top front perspective view of an automatic temperature sensing electric heater, showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a top plan view thereof. 

The ornamental design for an automatic temperature sensing electric heater, substantially as shown. 